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GH2801S の電気的特性と機能

GH2801SのメーカーはIRFです、この部品の機能は「HIGH EFFICIENCY RADIATION HARDENED DC-DC CONVERTER」です。


製品の詳細 ( Datasheet PDF )

部品番号 GH2801S
部品説明 HIGH EFFICIENCY RADIATION HARDENED DC-DC CONVERTER
メーカ IRF
ロゴ IRF ロゴ 




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GH2801S Datasheet, GH2801S PDF,ピン配置, 機能
PD-97440C
HIGH RELIABILITY, HIGH EFFICIENCY
RADIATION HARDENED
DC-DC CONVERTER
GH-SERIES
28V Input, Single Output
Description
The GH series is a family of low voltage single output
DC-DC converters. They are specifically designed in
response to the need for low voltage at moderate current
levels with the high efficiency and tight regulation
dictated by modern digital processing applications. The
converters are radiation hardened, high reliability
converters designed for extended operation in hostile
environments. Their small size and low weight make
them ideal for applications such as geostationary earth
orbit satellites and deep space probes. They exhibit a
high tolerance to total ionizing dose, single event effects
and environmental stresses such as temperature
extremes, mechanical shock, and vibration. All
components are fully de-rated to meet the requirements
of MIL-STD-975, MIL-STD-1547 except for the CDR type
of capacitors, a capacitor with 50V rating is used for in-
circuit voltage stress of less than10V. Thorough analyses
and documentation including beginning-of-life (BOL)
and end-of-life (EOL) electrical worst case (WCA)
operation, component stress and de-rating, radiation
susceptibility (TREE), thermal stress, failure mode and
effects (FMEA), and reliability (MTBF) are available for
customer review.
The design incorporates a fixed frequency topology
with magnetic feedback. Synchronous rectification is
deployed to maximize efficiency performance. The
converters include an internal EMI filter that is capable
of meeting the conducted emission requirements of
most major satellite power busses. Incorporation of
many functional features including on/off command,
remote sensing, and under-voltage lockout make the
design suitable for today’s space design applications.
The converter is enclosed in a hermetically sealed
package with the overall dimensions of 3.5"L x 2.50”W
x 0.475"H including the I/O pins and mounting tabs.
The package base material is silicon carbide-
aluminum (AISIC). The package ring frame is Alloy
48. The package utilizes rugged ceramic feed-through
copper core I/O pins and is sealed using parallel
seam welding. The total mass of a converter is less
than 110 grams.
www.irf.com
GH
Features
n Total Ionizing Dose (TID) > 100 KRad(Si)
n SEE Hardened to LET Level > 82 MeV.cm2/mg
n Internal EMI filter
n Low Weight, < 110 grams
n Magnetically Coupled Feedback
n 18V to 40V DC Input Range
n Up to 50W Output Power
n Single Output Models Include
1V, 1.5V, 1.8V, 2.5V, 3.3V and 5V
n High Efficiency - to 87%
n -55°C to +85°C Operating Temperature Range
n 100M@ 100VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Voltage Adjust
n Synchronization Output and Input
n Remote Sense
n External Inhibit
Applications
n Deep Space Satellites / Probes
n Strategic Weapons and Communication System
n Geostationary Earth Orbit Satellites (GEO)
Manufactured in a facility fully qualified to MIL-
PRF-38534, these converters are fabricated
utilizing DLA Land and Maritime qualified
processes. For available screening options, refer
to device screening table in the data sheet.
Non-flight versions of the GH-Series converters
are available for system development purposes.
Variations in electrical specifications and
screening to meet custom requirements can be
accommodated.
1
10/12/12
http://www.Datasheet4U.com

1 Page





GH2801S pdf, ピン配列
GH-SERIES
(28V Input, Single Output)
Electrical Performance Characteristics ( continued )
Parameter
Group A
Subgroup
Conditions
-55°C TC +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Switching frequency (FS)
Synchronization Input
frequency range
pulse high level
pulse low level
pulse transition time
pulse duty cycle
Output ripple (VRIP)
GH2801S
GH2801R5S
GH2801R8S
GH2802R5S
GH2803R3S
GH2805S
Efficiency (EFF)
GH2801S
GH2801R5S
GH2801R8S
GH2802R5S
GH2803R3S
GH2805S
Inhibit Input
open circuit voltage
drive current (sink)
voltage range
Current Limit Point
Expressed as a percentage
of full rated load current
Power dissipation, load fault (PD)
Output response to
step load changes (VTLD)
GH2801S
GH2801R5S
GH2801R8S
GH2802R5S
GH2803R3S
GH2805S
Recovery time,
step load changes (TTLD)
GH2801S
GH2801R5S
GH2801R8S
GH2802R5S
GH2803R3S
GH2805S
Output response to
step line changes (VTLN)
Recovery time,
step line changes (TTLN)
Turn-on Response
Overshoot (VOSH)
Turn-on Delay (TDLY)
1,2,3
Sync. Input (Pin 4) open
Ext. Clock on Sync. Input (Pin 4)
Note 1
1,2,3
IOUT = 100% rated load
Note 4
IOUT = 100% rated load
1
1,2,3
Note 1
1,2,3
1,2,3
Vout = 90% of Nominal
Short Circuit, Overload, Note 6
Half Load to/from Full Load, Note 7
4,5,6
Half Load to/from Full Load, Notes 7, 8
4,5,6
4,5,6
4,5,6
24V to/from 32V
IOUT = 100% rated load, Notes 1, 9
24V to/from 32V
IOUT = 100% rated load, Notes 1, 8, 9
4,5,6
No Load, Full Load
Note 10
Min
450
450
4.0
-0.5
80
20
70
72
75
81
83
85
3.0
-0.5
-300
-300
-300
-300
-300
-300
-50
0
For Notes to Electrical Performance Characteristics, refer to page 4
www.irf.com
Limits
Nom
500
5
5
5
10
10
10
73
75
78
84
85
87
125
17
Unit
Max
550 KHz
600 KHz
10.0 V
0.5 V
V/µs
80 %
15
15
15 mV p-p
25
25
30
%
5.0 V
100 µA
50 V
135 %
25 W
300
300
300
mV pk
300
300
300
250
250
250 µs
250
250
250
50 mV pk
200 µs
250 mV
5.0 ms
3
http://www.Datasheet4U.com


3Pages


GH2801S 電子部品, 半導体
GH-SERIES
(28V Input, Single Output)
Fig. 3 – EMI CE03 Specification Limits and Typical Performance
Input 1
Inhibit 3
Case 13
Input
Return
2
Sync
Input
4
Sync 5
Output
EMI
FILTER
Fig. 4 Block Diagram - Single Output
PEAK
CURRENT
DETECTION
UVLO &
INHIBIT
BIAS +12V
SUPPLY
OSCILLATOR
Ref Aout
PWM Bout
CONTROLLER
Clk
Vfb
S.S.
SAMPLE
&
HOLD
FEEDBACK
TRIGGER
+9V Sec. Bias
ERROR
AMPLIFIER
SENSE
AMPLIFIER
REF &
S.S.
7/8
Output
9/10
Output
Return
6 +Sense
11 -Sense
12 Output
Adjust
6 www.irf.com
http://www.Datasheet4U.com

6 Page



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共有リンク

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部品番号部品説明メーカ
GH2801S

HIGH EFFICIENCY RADIATION HARDENED DC-DC CONVERTER

IRF
IRF
GH2801S

HIGH EFFICIENCY RADIATION HARDENED DC-DC CONVERTER

IRF
IRF


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